Senior Networking & Security Specialist

Description

Senior Networking & Security Specialist / Technical Lead

Location: Newbury - Hybrid, 1-2 days per week onsite

Contract: 6 months rolling

Security Clearance: Active or eligible for UK SC Clearance

Rate: £500-£600 per day, inside IR35

We are looking for an experienced Senior Networking & Security Specialist / Technical Lead to join a high-level technical delivery team, leading the design and hands-on implementation of complex, multi-vendor network and security solutions across enterprise environments.

This is a hands-on role combining technical leadership, solution design, implementation and stakeholder engagement.

Key Responsibilities

Lead the design and implementation of complex network and security solutions across greenfield and brownfield environments

Produce high-quality HLDs, LLDs, implementation plans and operational runbooks

Perform design validation, PoC testing and pre/post-implementation verification

Configure, deploy and optimise network and security infrastructure

Diagnose and resolve complex network and security incidents

Conduct technical assessments and capacity planning

Act as the primary technical point of contact for project stakeholders

Present technical designs and implementation strategies to technical and non-technical audiences

Coordinate engineers and technicians, providing technical leadership and mentoring

Work closely with project managers, solution architects, client teams and operations throughout the project lifecycle

Technical Experience Required

We're particularly interested in candidates with strong experience across:

Networking

Advanced routing & switching

BGP, OSPF, IS-IS and EIGRP

VLAN, STP/RSTP/MSTP, vPC/LACP and QoS

VXLAN, GRE and IPsec

Enterprise and service-provider environments

Cisco ACI, including spine-leaf architecture and multi-pod/multi-siteNetwork Security

Next-Generation Firewall design and implementation

IPsec, SSL/TLS and SD-WAN security

Security policy and lifecycle management

Compliance-aligned network securityApplication Delivery

L4/L7 load balancing

SSL offloading

Global Server Load Balancing (GSLB)

High-availability architecturesVendor Technologies

Cisco IOS/IOS-XE/IOS-XR/NX-OS, ASA, Firepower, ISE, Catalyst Centre and ACI

Juniper JunOS and SRX

Fortinet FortiOS, FortiGate, FortiManager and FortiAnalyzer

F5 BIG-IP LTM/GTM/ASM/APM and iRules

Desirable

Network automation experience using Python and/or Ansible

Experience integrating network platforms via REST/NETCONF/RESTCONF/gRPC APIs

Professional-level networking certifications such as CCIE, JNCIE or equivalent

Cisco DevNet certification

What We're Looking For

You'll need to be a confident technical lead who can take ownership of complex deliverables, communicate technical concepts clearly, solve problems under pressure and work effectively with both technical and business stakeholders.

If you're an experienced Network & Security Specialist looking for your next contract opportunity in a technically challenging environment, we'd love to hear from you.

Interested? xjnqpsq Apply now or send over your latest CV for consideration.

#Networking #NetworkSecurity #CyberSecurity #Cisco #CiscoACI #Juniper #Fortinet #F5 #NetworkEngineer #NetworkArchitect #TechnicalLead #SCclearance #ContractJobs #UKJobs #Newbury #Infrastructure

Ad ID: 5418853496